The 4" x 7" Standard Black Nipple (STD BLK NIPPLE) from Service Metal Products is designed for seamless connections in piping systems. Made from high-quality black steel, this nipple provides excellent durability and resistance to corrosion. It is suitable for various applications, including water, gas, and oil transport. The standard dimensions ensure compatibility with other fittings and pipes. This product meets industry standards for quality and performance, making it a reliable choice for your plumbing and industrial needs.